Fuel saver



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A. EDMOND FUEL SAVER July l0, 1923.

Filed Nov. 23. 1921 INVENTOR Patented lluly 10, 1923.

1" Y mtime ALFRED EDMOND, orA KEARNEY, NEW .mesma FUEL seven.l

Ap1i1iauoniuedn0vember ze, 192i. 'srialnaslzsoa ToaZZ to from it may conce/rm Be it known that I, ALFRED EDMOND, a 'citizen of the United States, and a resident of Kearney,county of Hudson, and State of New Jersey, have invented certain new and useful Improvements in Fuel ySavers, of

which the following is a specication.

This invention relates to an improved fuel saver which is of the type that occupies a material amount of space in the center of the lire box vso as to cause the combustion of coal to take pla-ce close to the walls of the fire box.

The invention is designed to provide a casing or dome of a construction that will permit it to be placed in any heater through the fire door and, when assembled, to form a firm substantial support over which a cover or cap of fire brick or other refractory material is placed, the latter being also insertable through the fire door as it is made in sections.

The invention is illustrated in the accompanying drawing, in which Figure 1 is an elevation of a device embodying my invention, being shown in a ire box ofa heater, a portion of which is shown in section. Figure 2 is a horizontal sectional view, broken away at parts to more clearly illus trate the invention. Figure 3 is a sectional perspective of the device shown in Figure 1. Figure 4 is a detail perspective of the bottom part of the casing of the device. Figure 5 shows one form of supporting fixture in partial perspective, and Figure 6 is another detail perspective view' of the inner casing or dome of the device.

In the drawing 10 illustrates the lire box of an ordinary heater, the outer walls 11 vof which extend down to approximately the level of the grate 12 and thus form water chambers 13, to which chambers it is desirable to apply the heat of the fire to secure `the best results. Thereforeit is necessary to occupy a portion, preferably the central portion, of the ire box with a casing or dome which will, in conjunction with the walls 11, form an anular receptacle for coal,

thus effecting a material saving in the amo-unt of coal used, since the fire box will not hold so much coal as before the device was installed, but providing as much or more heat to the water in the furnace.

The dome or casing consists of an inner casing or dome 14 which is made to substantially conform to the shape of the re box,

and since .a round fire box is shown l' illustrate a round dome which is made up of more vthan one member, the form shown comprising two membersy 15 and 16 which are placed together side by side, forming a Vertical joint between them, which joint is tightly closed by suitable means, such as thevscrews 17 whichare accessible through the vslots or openings 18 in the members and which have horizontal partitions 19 near the bottom to keep out air and prevent undue cooling of the device, as will be evident hereinafter.

The bottoms of the members are preferably provided with a flange 20 which extends outwardly therefrom and forms a convenient element on which the fire brick or other refractory covering of the dome 14 is supported. The refractory covering or shell is made in more than one piece, the preferred form being a member or ring 21 which is slipped over the assembled members 15 and 16 and rests onthe flange 20 of each member. A cap 22 fits over the top part of the dome 14 and rests: thereon, the

top part of the dome and the top part of the cap 22 being usually formed with a slight and similar curvature so as to shed coal toward the sides when the grate is shalren and to also support the cap 22 for substantially its entire top surface.`

The device is installed in the fire box so that it does not interfere with the rotation of the grate bars 12, and in the form shown such support consists of T-irons 23 and 24 which extend at right angles to the fire box above the grate and are fastened to Suitable lugs 25 usually present in fire boxes at the corner of the grate, these bars being arranged diagonally and one of them, as 24, being cut away, as will be seen from Figure 4, to permit the passage of the other, and being preferably cut away far enough back so that the ribI thereon forms a. shoulder, as shown at 26 in Figure 3, against which the flange 20 rests. The device can set down over this bar, since the other bar is permitted to pass through the casing, since it is cut away, as at 27' in Figures 2 and 4, to receive the barr23.

bars to be rocked.

I claim:

l. A fuel sever Comprising aV easing formed of two members adapted to besecured side by side, L covering of refractory material, said covering comprising e lower member to surround the bottom part of the Casing and an upper part to surround the upper sides and the top of the easing.

2. A fuel saver comprising a hollow cee ing made of two members to be assembled srle by side, the nlembers having horizontal partitions near the bottom to form zi closed bottom when the members are assembled, 'means for cletziehebly securing the members together, and a covering of refractory materia-l comprising a' bottom member toeneirele the lower part of thev easing und an upper member in the form of ay cap to rest on the lower member and enclose the upper part and the vtop' of the easing. n

3. A fuel Seyer Comprising e easing having a closed bottom and a rounded top and formeel of two members adapted to be detaehably secured together, the easing having aV flange et the bottom thereof, covering of refractory material oompriieing ai lower member to encircle the lower part of ALFRED AEDivIoNlD. 

